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Model

Digifanless 550WEDF550AWNFully modular

Silent Operation. Brilliant Technology. Precious Design.

Fanless Power SupplyThe sophisticated passive cooling system of the Digifanless power supply guarantees a completely silent operation (0db(A)). The PSU is therefore the first choice for all silent PCs, multimedia stations or HTPCs.

Attention! Please keep the main air vent upside in the chassis. Do not block the air vents of the power supply and ensure an adequate air circulation in your PC system.

Digital Monitoring & Control SystemThe Digifanless is equipped with a digital interface to transmit and control the most essential performance values. With the ZDPMS software (“Zero-Delay Power Monitoring System”) users can easily monitor the power supply operation and customize certain functions, eg. switch between multi- or single-rail mode, fine tune the 12V output voltage or set the trigger points for OCP/OVP warning messages. More information about the various function of the ZDPMS software you can find in the >> ZDPMS manual. Please note that the software supports only Enermax power supplies with ZDPMS interface. >> Download ZDPMS Software

Efficiency

80 PLUS® PlatinumUp to 93% efficiency at 230VAC between 20 and 100% load. The Digifanless 550W is 80 PLUS® Platinum certified. The digital interface of the power supplies provides a continuous control of the system power consumption and efficiency rate. Thanks to the included ZDPMS software, users can further calculate the electricity costs and carbon footprint.

Support of EU Eco-Design RegulationsThe Digifanless 550W helps systems to meet the EU eco-design directive ErP Lot 6 2013 (< 0.5W in standby mode*) due to a high-efficient 5V standby (+5Vsb) circuitry as well as the EU regulation no. 617/2013 demanding amongst others 85% efficiency at 50% load and 82% at 20% and 100% load.* only in combination with an ErP Lot 6 2013 ready mainboard

Technology

DC-to-DC DesignThe secondary voltages (5V & 3.3V) are generated by the primary 12V rail. This leads to a high-efficient operation, clean output voltages with an extremely low ripple noise as well as an optimal voltage regulation from zero to high loading.

Multi-Rail Design with Single-Rail OptionSecure and stable power supply thanks to two high-performance and massive 12V rails with separate over-current protection (OCP). Possibility to switch to single-rail operation via the ZDPMS software to run PC systems with high performance or overclocked graphics cards and CPUs.

Compatibility

Intel® ATX12V v2.4Compliant with the Intel Power Supply Design Guide for Desktop Platform Form Factors Revision 1.31 April 2013.

SafeGuardThe multiple protection circuit shields the power supply and the system from damage in case of short circuit (SCP), over voltage (OVP), under voltage (UVP), over current (OCP), over power (OPP), over temperature (OTP) as well as surges and inrush current (SIP). The ZDPMS software warns the user in case of increased current, voltages or temperature, so that precautionary measures can avoid the triggering of protections.

Specifications

Efficiency & Noise Level

The Digifanless 550W complies with the requirements of the latest EU regulation for computer systems No. 617/2013 (valid since 1st of July 2014).

10% load @ 230V

20% load @ 230V

50% load @ 230V

100% load @ 230V

Eff.

dB(A)

Eff.

dB(A)

Eff.

dB(A)

Eff.

PF

dB(A)

EDF550AWN

86.25

0.0

91.47%

0.0

93.76%

0.0

92.35%

0.99

0.0

* Eff. = Efficiency | PF = Power Factor

Certifications & Standards

Connectors

Digifanless 550WEDF550AWN

Modular Connectors

Mainboard 24-Pin

1x (600mm)

CPU 4+4-Pin (8-Pin)

1x (650mm)

PCI-E 6+2-Pin (8-Pin)

4x (500mm)

SATA

8x (450/600/750/900mm)

Molex 4-Pin

4x(450/600/750/900mm)

FDD

1x(1050mm)

ZDPMS Data Link

1x(600mm)

Modular Sockets - Pin Assignment

ZDPMS Data Link

Digifanless is equipped with a digital interface to read out and control the PSU operation. Connect the ZDPMS data link with a free USB port at your mainboard.

After system boot, please install the >> ZDPMS software for most comfortable power monitoring and control. Please note that the software is working with ENERMAX power supplies with ZDPMS interface only.